I have this power bank that I saw got good reviews but I notice a thing in its design that makes me nervous about using it.
The negative wire is tucked under the positive connections and im worried about them ever touching and making a short. Is this something I should toss in the trash despite the reviews or can I do something like wrap the negative area near the positive in electrical tape in an attempt to insulate it?
i have these or other like it and never had a problem
BUT make sure to check out the output voltage some of these can be to hi i like ones that go UP TO 4.23v